Joe Terranova on 4 Oct 2008 21:26:48 -0700

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Re: [PLUG] resolv.conf question

The file you want is /etc/dhcp3/dhclient.conf is the domain you want it to be, and opendns is the
nameserver you want to use. You can use one or both directives.

supersede domain-name ""; # domain for searching

prepend domain-name-servers,; # ips for

Don't know how to set your hostname, and friends are here.

Cheers, and hope to see you at my next LAN,

Joe Terranova

On Sat, Oct 4, 2008 at 11:30 PM, Brian Stempin <> wrote:
> Hi,
> I'm running Ubuntu 6.06 on my home router box.  This particular machine is
> also running a DHCP and internal DNS server.  I've noticed that while
> SSH'ing into my router, my internal DNS names do not resolve.  I took a look
> at /etc/resolv.conf, and noticed that the DNS and name search information
> was set to Comcast's default values.  I figured that this was normal, since
> one of the machine's NICs has a static internal address, and the other has a
> DHCP address supplied by Comcast.  Knowing this, I modified the machine's
> resolv.conf file such that my internal DNS server was the first one to be
> used.  In addition to this, I also changed the default host name suffix to
> my internal name (ie, instead of the default suffix being
> "", I changed it to "").  This worked
> for a while, but suddenly stopped working.  Upon further inspection, it
> turns out that my Comcast DHCP lease expiring caused my resolv.conf to be
> overwritten by dhclient.
> How do I configure this system to use my DNS server and default host name
> suffix, while allowing Comcast's information to also be added/updated when
> my Comcast interface re-DHCPs?  Is this a simple resolv.conf configuration,
> or is there more to this solution?
> TIA,
> Brian
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